Create Date: Sep 7 2013 3:08AM
From the CLI Reference Guide...
Each node on the ring connects through two ring ports. One port must be configured as the primary
port; the other must be configured as the secondary port.
The primary and secondary ports have significance only on a master node. The health-check messages
are sent out the primary port of the master node, and the master node blocks the protected VLANs on
the secondary port.
The master node’s secondary EAPS port cannot be configured on ports that are already configured as
follows:
• Shared-port
• MLAG ISC port
There is no distinction between the primary and secondary ports on a transit node. (from Daniel_Flouret)